Drug suspect Arthit Khunhong, 29, sitting, with police at his house in Kalasin and packages containing 198,000 speed pills found hidden in an unused septic tank. (Photo by Yongyut Phupuangphet)Published caption : Drug suspect Arthit Khunhong, 29, sitting, with police at his house in Kalasin and packages containing 198,000 speed pills found hidden in a disused septic tank.